482 
ANNEL1DES. 
Genus G.—L Y SIDICE.— Lamarck. 
Generic Character. —Seven jaws, three on the right and four 
on the left side ; the under ones simple ; antennae three, short 
without articulations ; head visible, with the forehead rounded ; 
eyes two, distinct; without cirri. 
Genus 7.—LEODICE. — Savigney. 
Generic Character. —Seven jaws, three on the right side and 
four on the left; five filiform antennae longer than the head, 
unequal ; head distinct, with two eyes. 
Leoclice sanguined. — The Bloody Leodice. 
Plate XC1II. fig. 1. 
With pectinated branchiae; most lengthened towards the 
centre of the body; tail with a double setaceous termination. 
Inhabits the Indian ocean. 
TRIBE III.-NEREIDES. 
Branchiae, when visible, and upper cirri, on all the pairs of 
papillae; either with two jaws, or none. 
Genus 8.—SPIO.— Lamarck. 
Generic Character. —Body elongated, slender, with a row of 
very short bristles, set in tufts; branchiae lateral, filiform, and 
not divided; tentacula two, very long, filiform or setaceous; 
mouth terminal; eyes two or four. • 
Spio quadricornis. — The Four-Horned Spio. 
Plate XCIII. fig. 7. 
With four tentacula, the external ones filiform, and the inter¬ 
mediate thick and short. Inhabits the British coasts. 
Genus 9.—SYLLIS. — Lamarck. 
Generic Character. —Proboscis separated into two segments, 
the orifice unprovided with tentacula, but in its stead a small 
protruding horn; no jaws; three antennae, moniliform; two 
pairs of tentacuke and moniliform cirri; the others long; the 
lower ones inarticulate and conical. 
